8T49N286-001NLGI8

Overview

The 8T49N286-001NLGI8 is a Universal Frequency Translator (UFT) from the FemtoClock NG series by Renesas Electronics. It functions as a clock synthesizer and jitter cleaner, supporting input frequencies up to 1 GHz and generating outputs with high precision. The device features differential inputs and outputs, configurable via I2C interface. It operates within a supply voltage range of 2.375V to 3.465V and is housed in a 72-VFQFN package with an exposed pad, designed for surface-mount applications in demanding timing environments.

Feature Summary

• Universal Frequency Translator architecture supporting integer and fractional-N PLL modes
• Supports multiple input formats including LVPECL, LVDS, HCSL, and CMOS
• Configurable output drivers including LVPECL, LVDS, HCSL, and CMOS
• Integrated EEPROM for non-volatile configuration storage

Applications

• Telecommunications base stations requiring Stratum 3E synchronization
• Data center infrastructure and server clock distribution
• High-speed serial communication interfaces (e.g., PCIe, Ethernet)
• Test and measurement equipment requiring low-jitter clock generation

Procurement Notes

Verify the specific suffix '001' against the official FemtoClock NG ordering guide to confirm the exact frequency plan and pinout compatibility. Check for recent Product Change Notices (PCNs) regarding assembly sites or marking changes. Confirm RoHS3 compliance status and moisture sensitivity level (MSL) ratings prior to PCB assembly planning.

Selection Notes

Select this component when a single device must handle diverse input/output voltage levels and frequencies without external translators. Ensure the design requires the 72-pin form factor for thermal and electrical performance. Validate that the required output frequencies fall within the device's VCO range and that the I2C interface matches the system controller capabilities.

Part Context

This part belongs to the 8T49N286 family, which are universal frequency translators designed to replace multiple discrete clock generators. The 'NLGI8' suffix indicates a lead-free, halogen-free RoHS-compliant variant in a tape-and-reel packaging format suitable for automated surface-mount assembly processes.

Replacement Considerations

Direct replacements may include other 8T49N286 variants with different frequency plans but identical pinouts. Verify functional equivalence if substituting with older 8T49xxx series parts, as register maps and configuration methods may differ significantly.